Appliance for elevators and other movable objects and bodies.



A. LUNGEN. APPLIANCE FOR ELEVATORS AND OTHER MOVABLE OBJECTS AND BODIES.APPLIUATION FILED JAN 30, 1908 909,433. Patented Jan. 12, 1909.

THE NORRIS Plrzns cm, vlaumcrou. n. c.

ADAM LUNGEN, or NEW YORK, N. Y.

APPLIANCE FOR ELEVATORS AND OTHER MOVABLE OBJECTS AND BODIESSpecification of Letters Patent.

Patented. Jan. 12, 1909.

Application filed January 30, 1908. Serial No. 413,398.

To all whom it may concern:

Be it known that I, ADAM Lt'iNeEN, a citizen of the United States,residing at the city of New York, in the borough of the Bronx and Stateof New York, have invented certain new and useful Im rovements inAppliances for Elevators an other Movable Objects and Bodies, of whichthe following is a full, clear, and exact description.

My invention relates to appliances for elevators, cars, conveyances, andother movable objects and bodies, and having the broadly stated purposesand functions of Patent No; 715,648, issued to F. T. Ellithorpe.

The purpose of this apparatus is to provide for indicating or recordingor both indicating and recording the failures of operatorsto pro erlyclose the doors at elevator landings be ore the car has left the same.

The principal object of the present invention is to provide a device orsystem for attaining the foregoing purposes, and in which no parts aresubjected to the shock, jar, wear and noise incident to their engagementby a rapidly moving car or surface. I also provide for the completeinclosure of all the delicate operating parts within an entirelyinclosed casing, which may be hermetically sealed, if desired, so as toabsolutely preclude the entrance of dampness or dust. For this purpose Imake use of a part displaced by a magnetic field, such magnetic fieldbeing rendered effective by certain magnetic bodies or elements carriedupon or moved during the passage of the elevator car.

More particularly stated, my invention consists in providing a magneticfreely movable part or device at the various car landings, and which isdisplaced under certain circumstances by the assage of iron cheeks orshoes fastened to t e car so as to pass in proximity to said magneticpart.

It is the object of my invention to render this magnetic actuationeffective to produce a signal or alarm in case a door is improperly leftopen after a car has passed the landing thereof, and continue suchsignal until the door is closed.

With these and other objects in view my invention consists in thefeatures of construction and combination as hereinafter set forth andclaimed.

In the drawings: Figure l is a complete diagrammatic view illustrating apreferred embodiment of my invention. Fig. 2 is a diagrammatic viewshowing the manner in which the a paratus is arranged when applied to ane evator; Fig. 3 is a vertical sectional view of a slightly modifiedconstruction; Fig. 4 is a top view of the same, the casing being shownin section; and Fig. 5 is a side view partly in section of anothermodified construction.

Referring to the drawings in which like parts are designated by the samereference sign, 1 indicates an elevator car, and 2 the door at one ofthe landings.

3 designates a circuit-closing device of any ordinary or preferredconstruction which closes a circuit when the door is open andconversely. For this purpose I may employ two spring blades 4, which aredisplaced to break a circuit connection therebetween by an insulatingplug 5, on or in the path of the door in its closing movement. It isobvious that a circuit-closing device of this character is actuated toclose its circuit whether the door is left open through a great or asmall distance.

6 designate cheeks or shoes of iron or magnetic material fastened to thecar so as to be movable in a single vertical line past any given pointor points in the elevator shaft.

7 indicates broadly a magnetically-controlled circuit completing deviceembodying the principles of my invention, and which is located at apoint or points in the elevator shaft in proximity to the path ofmovement of the cheeks or shoes 6 on the car. At a given landing, therelation is preferably that shown in Fig. 2 where the device 7 liesbetween but substantially out of the influence of the cheeks 6 while thecar is opposite the same. In this way one or another of the cheeks 6comes into influencing proximity to the device 7 when the car starts ineither direction of movement from the landing.

The magnetically influenced circuit-completing device 7 may beconstructed in widely different ways, and still secure the essentialprinciple of the present invention, namely, having a circuit completingpart displaced by magnetic influence through 00- operating bodies orparts on the car in its assage. In Fig. 1 I have illustrated a preferred construction having a magnet 10, suspended or flexibly hung froma point 11. 12 indicates depending pole pieces from the magnet which maybe of the angular form shown so as to present surfaces 13, ofconsiderable area toward the checks 6 of the car.

14 denotes an extension rigidly depending" from the frame of the magnet10 so as to swing therewith under all circumstances. The extension 14has itsforward movement limited by a contact 15, which thereby makes anelectrical connection whenever the mag net is swung forwardly. All theseparts may be hermetically inclosed in a casing 16.

18 designates a device which exerts a double function as follows: first,insuring the continuance of the alarm circuit when once completed untilprescribed acts have been erformed; and, second, making an audible uzzor sound so as to itself constitute an indicator or alarm. This deviceincludes a magnet 19, having an armature 20, movable toward and from thepole thereof. 21 indi cates a circuit-closing element in the path of thearmature 20 and adapted to complete a circuit at 22, when the armature20 is fully attracted. The circuits willbe best understood from adescription of their operation.

The action of the above described mechanism is as follows: Supposing adoor has been left open, it is clear that circuit clo'sing device 3'will complete circuit of battery B, through wire Z, wire Z magnet 10,Wire Z wire Z, back to battery'B. The magnet 10 is therefore fullyenergized and its magnetized poles 12 are presented in the path ofmovement of the cheeks 6 on the elevator car. If the car now starts fromthe landing in either direction, one of the cheeks 6 will pass withinthe zone ofinfluence of the poles 12, which exert a strong attractionand draw the magnet 10 toward the right in Fig. 1. A circuit is therebycompleted' at the point 15 as follows: battery B, circuit-closing device3 wire Z, wire Z (which is connected to extension 14 at the point 23),contact 15, wire m, magnet 19, wire m wire m wire Z back to battery B-The magnet 19 is therebyenergized and attracts its armature 20' whichengages the element 21 at the point 24, and completes a circuittherewith as follows battery B, circuit-closing device 3, wire Z, wirea, armature 20, contact 24, element 21, wire N magnet 19, wire m wire mback to battery B. It is evident that this circuit continues theenergization of magnet 19 absolutely independently of the circuitthrough the magnet 10, so that magnet 19 continues to be energizednotwithstanding the opening of the circuit at 15, which, of course,occurs asso'on as the elevator car has moved very far, owing to theremoval of the cheek 6 from the poles 12. The energization of magnet 19not only completes a circuit at 24, but also eventually at 22, since thecircuit closing element 21 is finally borne inward against contact 22.The contact at 22 simply short circuits the magnet 19 as follows: wire0, contact 22, and wire n The current flow through the magnet 19 istherefore effectively terminated by the shunt or short'circui't formed.The

magnet 19 deenergizes under this short cir- .cuit' so that armature 2Ocommences its return movement, but the return movement only proceeds fora minute distance of travel, and before contact is broken at 24,when thecontact at 22 again becomes broken. Itis evident that the contact at 22will be broken before that at 24, because element 21 moves with thearmature during the initial return movement ofv the latter. But theopening of the circuit at 22 at once produces a reenen gization ofmagnet 19, which arrests the return movement of its armature and againattracts the same before the armature has had time to interrupt thecircuit at the point 24. The re-attraction of the armature causes theabove cycle to be indefinitely repeated so that this device acts as abuzzer and produces an audible sound. As the contact at 24 is notbroken, this action continues indefinitely or until the door-controlleddevice opens the main circuit of the battery. After the inception of theaction. the magnet 10 has no effect, so that the briefest momentaryclosure of the circuit at 15 is all that is necessary' to start theapparatus into action, after which it buzzes continuously until the doorat the landing has been closed. It is evident that any other desiredrecording or indicating device X maybe inserted in the circuit ofbattery B to produce a notification or record of the operators error inleaving the door open.

In Figs. 3 and 4 I have illustrated another form of the invention inwhich 30 designates magnet windings or bobbins fixed in predeterminedparallel and spaced-apart relation by a non-magnetic frame 31, betweenthe end portions of which the bobbins are secured. 32indicates ironcores passing loosely through. the bobbins 30, and oined together byconnecting iron yoke 33. At their forward ends these cores are expandedand flattened to form pole cheeks 34, adapted to ex ert an attractiveinfluence on the shoes or cheeks 6 of the car with a maximum efficiency.35 designates a rod projecting for wardly from the yoke 33 between thebobbins 36 and engaging a spring 36. The spring 36 is normally out ofelectric connection with a fixed blade 37, but is capable of beingdisplaced forwardly to make contact therewith when impelled by the rod35. Under normal circumstances the spring 36 keeps the rod 35 pressed tothe right in Fig. 4, sothat the cores 32 are drawn rearwardiy in theirinclosing bobbins. All of the operating parts may be hermeticallyinclosed in a casing 38.

M denotes a buzzer and N an indicator of ordinary or any preferredconstruction, and electrically connected with the bobbins 30 and thebattery B by circuit operating as follows: Supposing that a door is leftinadvertently open, a circuit is completed at 3, from circuit-closingdevice,

battery B, through wire 1), and wire 19 The bobbins 3O accordinglystrongly energize the cores S2 and if the car starts so as to present ashoe or check 6 op osite the ole pieces 34, it is evident that t elatter wil be drawn forwardly and impel blade 36 against blade 37,through the rod 35. This engagement completes a circuit through thebuzzer M, and the indicator N, from battery B, through the wire 9, blade37, blade 36, and wire go, back to battery. It is evident that only amomentary buzz and indication is made with this apparatus during theinterval that the car is passing.

Substantially the same functions as last described can be obtained withthe form of apparatus shown in Fig. 5. In this case 40 indicates apermanent magnet slidable through a guiding frame 41, of non-magneticmaterial. 42 and 43 designate spring blades which are brought intocontact by the forwardly sliding movement of the permanent magnet 40. 3designates the door circuit closer, and it is evident that a circuitfrom the battery B is completed through an indicator or buzzer 44, whenthe circuit is completed at 3, and the blades 42 and 43 are broughtintocontact by the attraction of the magnet 40 by the passing shoe orcheek 6 on the elevator car.

What I claim, is:

1. In combination with a normally open circuit, a movable objectcarrying a magnetic body, means displaceable at predetermined points inthe path of movement of said object for closing said circuit whenever sodisplaced, and means operating magnetically when said body on themovable object is at a predetermined position, for completing saidcircuit.

2. In elevators, a circuit, a door-operated means magnetically displacedby the movement of the car past a given point for completing saidcircuit, and a dust proof casing inclosing said means.

In combination with a circuit having a circuit-closing device therein, aconveyance, means magnetically displaced by the movement of theconveyance past a given point for completing said circuit, and means formaintaining said circuit completed after said magnetically displacedmeans has returned to normal position.

4:- In combination with a circuit having a circuit-closing devicetherein, a movable object, means magnetically displaced by the movementof the movable object past a given point for completing said circuit,and an alarm arranged to maintain said circuit completed after saidmagnetically displaced means has returned to normal position.

5. In combination with a circuit having a circuit-closing devicetherein, a conveyance, means magnetically displaced by the movement ofthe conveyance past a given point for completing said circuit, and amagnet having an armature displaced thereby to maintain said circuitcompleted after said magnetically displaced means has returned to normalposition.

6. In combination with a circuit having a circuit-closing devicetherein, a movable object, means magnetically displaced by the movementof the movable object past a given point for completing said circuit, amagnet having an armature displaced thereby to maintain said circuitcompleted after said magnetically displaced means has returned to normalposition, and means for causing said armature to vibrate through alimited distance whereby an audible alarm is given.

7. In combination with a circuit having a circuit-closing devicetherein, a conveyance, means magnetically displaced by the movement ofthe conveyance past a given point for completing said circuit, a magnethaving an armature said circuit completed after said magneticallydisplaced means has returned to normal position, and a shunt circuitclosed by the movement of said armature for causing said armature tovibrate through a limited extent, whereby an audible alarm is given.

8. In combination with a circuit having a circuit-closing devicetherein, a movable object, means magnetically displaced by the movementof said object past a given point for completing said circuit, adustroof casing inclosing said means, and a evice arranged to maintainsaid circuit complete after said magnetically displaced means hasreturned to normal position.

In witness whereof, I subscribe my signature, in the presence of twowitnesses.

ADAM LUNGEN.

Witnesses:

J. M. STU'roHLUNNY, GEORGE H. Jones.

displaced thereby to maintain v

